Vintage 50cm Colnago Super TrackBike FRAME FORK Columbus Pista BicycleCampagnolo
The size 50cm, I believe Colnago sizing is center to top. Actual Size is: Seat tube 48.5m Center to Center or 50cm Center to Top with a 51cm center to center top tube. The Head tube is 96mm tall. I could not find a serial Number.